The Sig 1911's are well built, true performers. The rest of their non 1911 line does nothing for me. I have never shot a C3 but I plan on picking one up in the future. The "Scorpion" and the "Nightmare" are the two I have spent the most time with, particularly the "Scorpion" one of the best, most dependable, accurate 1911's I have owned or shot. A little on the heavy side but it is what it is.